1 / 22

Lesson 3 Contents

Lesson 3 Contents. Example 1 b and c Are Positive Example 2 b Is Negative and c Is Positive Example 3 b Is Positive and c Is Negative Example 4 b Is Negative and c Is Negative Example 5 Solve an Equation by Factoring Example 6 Solve a Real-World Problem by Factoring. Example 1

jlieberman
Download Presentation

Lesson 3 Contents

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Lesson 3 Contents Example 1b and c Are Positive Example 2b Is Negative and c Is Positive Example 3b Is Positive and c Is Negative Example 4b Is Negative and c Is Negative Example 5Solve an Equation by Factoring Example 6Solve a Real-World Problem by Factoring

  2. Example 1 b and c Are Positive

  3. Factor In this trinomial, and You need to find the two numbers whose sum is 7 and whose product is 12. and Answer: Example 3-1a The correct factors are 3 and 4.

  4. F O I L FOIL method Simplify. Example 3-1a Check You can check the result by multiplying the two factors.

  5. Factor Answer: Example 3-1b

  6. Example 2 b Is Negative and c Is Positive

  7. Factor In this trinomial, and This means is negative and mn is positive. So m and n must both be negative. Therefore,make a list of the negative factors of 27, and look for the pair whose sum is –12. Answer: and Example 3-2a The correct factors are –3 and –9.

  8. Factor Answer: Example 3-2b

  9. Example 3 b Is Positive and c Is Negative

  10. Factor In this trinomial, and Thismeans is positive and mn is negative, so either m or n is negative, but not both. Therefore,make a list of the factors of –18 where one factorof each pair is negative. Look for the pair of factors whose sum is 3. Example 3-3a The correct factors are –3 and 6.

  11. and Answer: Example 3-3a

  12. Factor Answer: Example 3-3b

  13. Example 4 b Is Negative and c Is Negative

  14. Factor Since and is negative and mn is negative. So either m or n is negative, but not both. Example 3-4a The correct factors are 4 and –5.

  15. and Answer: Example 3-4a

  16. Factor Answer: Example 3-4b

  17. Example 5 Solve an Equation by Factoring

  18. Solve Check your solutions. Original equation Rewritethe equation so that one side equals 0. or Factor. Zero Product Property Solve each equation. Answer: The solution is Example 3-5a

  19. Example 3-5a Check Substitute –5 and 3 for x in the original equation.

  20. Solve Check your solutions. Answer: Example 3-5b

  21. Your Reward Pages 493 18-52 even

  22. End of Lesson 3

More Related